(under subclass 374) Sifting devices adapted for operation in connection with or within stoves or furnaces, but not ordinarily limited to such by inclusion of the stove or furnace as an essential element, in such relation that the sifter structure may not have utility in other relations.
(1) Note. Merely incidental inclusion of stoves or furnaces will not exclude the device from this subclass; but where there is some essential relation of structure between the stove or furnace precluding possible other utility for the sifter the device is classifiable elsewhere (see Search Class note below)
SEE OR SEARCH CLASS
126, Stoves and Furnaces,
244, for a sifter device wherein the essential relation of the structure between the stove or furnace precludes possible other utility for the sifter (see (1) Note).
